A new North Sea oil-based standard for Iatroscan analysis

The TLC-FID technique using the Iatroscan is a fast and cost-effective way to obtain quantitative data on the composition of crude oils and solvent extracts of rocks. However, its accuracy depends on correct calibration of the instrument using standards based on crude oil, since the use of synthetic...

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Bibliographic Details
Published in:Organic geochemistry 1997, Vol.26 (1), p.49-57
Main Authors: Bharati, Sunil, Patience, Richard, Mills, Nigel, Hanesand, Trond
Format: Article
Language:English
Subjects:
Applied sciences
Crude oil, natural gas and petroleum products
Earth sciences
Earth, ocean, space
Energy
Exact sciences and technology
Fuels
Geology and geochemistry. Geological and geochemical prospecting. Petroliferous series
Hydrocarbons
Iatroscan response factors
Marine
Oseberg oil
preparative TLC
Prospecting and exploration
Prospecting and production of crude oil, natural gas, oil shales and tar sands
Sedimentary rocks
standard for Iatroscan
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Description
Summary:The TLC-FID technique using the Iatroscan is a fast and cost-effective way to obtain quantitative data on the composition of crude oils and solvent extracts of rocks. However, its accuracy depends on correct calibration of the instrument using standards based on crude oil, since the use of synthetic standards had resulted in erroneous response factors. In the present study, a North Sea deasphaltened oil from the Oseberg field (NSO-1) was fingerprinted and separated into saturated hydrocarbons, aromatic hydrocarbons and polars on a large scale, using preparative TLC. These fractions were later mixed to provide a standard, which was used to calibrate Iatroscan and monitor the responses of the individual fractions. This standard has been shown to be stable for routine use and will, if adopted, render inter-laboratory data comparisons more reliable.
ISSN:0146-6380
1873-5290
DOI:10.1016/S0146-6380(96)00152-0